CN213655197U

CN213655197U - Portable fan

Info

Publication number: CN213655197U
Application number: CN202022445843.6U
Authority: CN
Inventors: 许广博; 王丹丹; 黄林忠
Original assignee: Shenzhen Ranvoo Technology Co Ltd
Current assignee: Shenzhen Ranvoo Technology Co Ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-07-09
Anticipated expiration: 2030-10-28

Abstract

The utility model provides a portable fan, including body, fan wheel and refrigeration subassembly, this internal accommodating space that is formed with, the fan wheel with the refrigeration subassembly is located in the accommodating space, the refrigeration subassembly includes the semiconductor refrigeration piece, the body has first lateral wall, be equipped with the heat conduction portion on the first lateral wall, the heat conduction portion adopts the heat conduction material to make, the cold junction of semiconductor refrigeration piece with the heat conduction portion pastes and establishes, in order to incite somebody to action the cold energy conduction that the semiconductor refrigeration piece produced extremely on the heat conduction portion, be equipped with the air outlet on the body, the wind warp that the fan wheel produced the air outlet blows off to make portable fan both can blow the cooling, can utilize the semiconductor refrigeration cooling at the human corresponding position through pasting the heat conduction portion with first lateral wall again, the cooling effect is better.

Description

Portable fan

Technical Field

The utility model relates to the technical field of daily necessities, in particular to portable fan with dual refrigeration mode.

Background

In hot summer, electric fans, air conditioners and the like are cooling equipment which are most commonly used by people, but the cooling equipment can only be used indoors and cannot be carried about, when people go out or have an open rest, the people can only cool themselves by using fans or natural wind, but the people do not have the natural wind many times and are tired by using the fans. In response to this situation, various portable fans have appeared on the market, which are mostly hand-held, inconvenient to take and store, and tired if being held for a long time. Moreover, the conventional portable fan only cools by blowing, so that the cooling effect is poor.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a portable fan with dual cooling modes.

The utility model provides a portable fan, which comprises a body, a fan wheel and a refrigeration component; an accommodating space is formed in the body, and the fan wheel and the refrigeration assembly are arranged in the accommodating space; the refrigeration assembly comprises a semiconductor refrigeration piece, the body is provided with a first side wall, a heat conduction part is arranged on the first side wall and made of a heat conduction material, and the cold end of the semiconductor refrigeration piece is attached to the heat conduction part so as to conduct cold energy generated by the semiconductor refrigeration piece to the heat conduction part; the body is provided with an air outlet, and air generated by the fan wheel is blown out through the air outlet.

In an embodiment, the body further includes a second sidewall adjacent to the first sidewall and a third sidewall opposite to the first sidewall, the second sidewall is connected between the first sidewall and the third sidewall, the air outlet is disposed on the second sidewall, and an air inlet is disposed on the first sidewall and/or the third sidewall, and the air inlet is used for the impeller to extract air.

In an embodiment, the refrigeration assembly further includes a heat dissipation fan and a heat dissipation member, the heat dissipation member is attached to the hot end of the semiconductor refrigeration sheet, the heat dissipation fan is used for blowing air to the heat dissipation member for heat dissipation, the second side wall is provided with heat dissipation holes, air generated by the heat dissipation fan is blown out from the heat dissipation holes, and the third side wall is provided with an air inlet hole for supplying air to the heat dissipation fan.

In one embodiment, the heat sink includes a substrate and a plurality of heat dissipation fins extending from the substrate toward one side, heat dissipation grooves are formed among the plurality of heat dissipation fins, one side of the substrate, which is away from the heat dissipation fins, is attached to the hot end of the semiconductor refrigeration sheet, mounting grooves are formed on the plurality of heat dissipation fins, and the heat dissipation fan is mounted in the mounting grooves;

the air inlet hole is arranged corresponding to the position of the heat dissipation fan, and the heat dissipation holes are arranged in the extending direction of the heat dissipation groove.

In an embodiment, the air inlet is disposed corresponding to a position of the fan wheel, a volute is surrounded by a periphery of the fan wheel, and an opening of the volute faces the air outlet.

In one embodiment, two fan wheels are arranged side by side, and the rotation directions of the two fan wheels are opposite.

In an embodiment, the portable fan further includes a battery and a circuit board, the battery and the circuit board are disposed in the accommodating space, the battery, the impeller and the refrigeration assembly are electrically connected to the circuit board, respectively, and the battery and the impeller are separated by a partition.

In one embodiment, the second side wall is provided with a hanging rope hole, so that the portable fan can be worn on a human body through a hanging rope; and/or

The first side wall or the third side wall is provided with a pivoting groove, and a supporting sheet is rotatably connected in the pivoting groove.

In one embodiment, the body includes a first housing and a second housing connected to each other, the first housing includes the first sidewall, the second sidewall and the third sidewall, and the receiving space is formed in the first housing; an air inlet gap is formed between the second side wall and the third side wall, or the second shell is connected with the third side wall and forms an air inlet gap with the third side wall, so that external air can enter the accommodating space from the air inlet gap on the third side wall through the air inlet.

In an embodiment, an accommodating cavity is formed in the second casing, the portable fan further includes a battery and a circuit board, the battery is disposed in the accommodating cavity, the circuit board is disposed in the accommodating cavity or the accommodating space, and the battery, the impeller and the refrigeration assembly are electrically connected to the circuit board respectively.

To sum up, the utility model provides a portable fan, include the body and locate this internal impeller and refrigeration subassembly, the refrigeration subassembly includes the semiconductor refrigeration piece, the body has first lateral wall, be equipped with the heat conduction portion on the first lateral wall, the heat conduction portion adopts the heat conduction material to make, the cold junction and the heat conduction portion subsides of semiconductor refrigeration piece are established, in order to conduct the cold energy that produces to the heat conduction portion, be equipped with the air outlet on the body, the wind that the impeller operation produced blows off through the air outlet, thereby make portable fan both can blow the cooling, can establish again through pasting the heat conduction portion with first lateral wall and correspond the position at the human body and utilize the semiconductor refrigeration cooling, it is better to enjoy the cool effect. The portable fan can be obliquely hung on the side of a user by the aid of the hanging rope penetrating through the hanging rope holes and fixed by the supporting sheet, so that the air outlet faces to a part to be cooled of a human body, the first side wall can be attached to the human body, and the portable fan does not need to be held by hands. The utility model discloses a portable fan simple structure, convenient and practical, the cooling is effectual, and portable brings good product experience for the user.

Drawings

Fig. 1 is a perspective view of the portable fan of the present invention at an angle.

Fig. 2 is a perspective view of the portable fan of fig. 1 at another angle.

Fig. 3 is a schematic diagram of the portable fan of fig. 1.

Fig. 4 is a further exploded view of the portable fan of fig. 3.

Fig. 5 is a still further exploded view of the portable fan of fig. 4.

Detailed Description

Before the embodiments are described in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The utility model discloses can be the embodiment that other modes realized. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," "having," and the like, herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present invention is not limited to the number of the element being one, and may include a plurality of the elements.

As shown in fig. 1-5, the present invention provides a portable fan 10 for cooling a human body. The portable fan 10 comprises a body 12, a fan wheel 14 and a refrigeration component, wherein an accommodating space 16 is formed in the body 12, and the fan wheel 14 and the refrigeration component are arranged in the accommodating space 16. In this embodiment, the fan wheel 14 and the refrigeration assembly are arranged at intervals along the width direction of the body 12, wherein the fan wheel 14 is disposed near one side of the body 12, and the refrigeration assembly is disposed near the other side of the body 12. The two fan wheels 14 are arranged, and the two fan wheels 14 are arranged side by side at intervals along the length direction of the body 12. In other embodiments, the fan wheel 14 may be provided in other numbers, such as one or more than two.

The body 12 includes a first housing 18 and a second housing 20 connected to each other, such as a snap-fit connection or an integral connection between the first housing 18 and the second housing 20. The first housing 18 includes a first sidewall 22, a second sidewall 24 and a third sidewall 26, the first sidewall 22 is provided with a heat conducting portion made of a heat conducting material, the second sidewall 24 is connected between the first sidewall 22 and the third sidewall 26, that is, the second sidewall 24 is an annular wall, two ends of the second sidewall 24 are respectively connected to edges of the first sidewall 22 and the third sidewall 26, and the three are enclosed together to form the accommodating space 16. In this embodiment, the first sidewall 22 is made of a heat conductive material as a whole, and the heat conduction portion is a partial area on the first sidewall 22, but in other embodiments, the first sidewall 22 may be made of another material and the first sidewall 22 is provided with a mounting area, and the heat conduction portion is made of a heat conductive material and is mounted on the mounting area to form a part of the first sidewall 22.

The second casing 20 is connected to the third side wall 26 and forms an air inlet gap 28 with the third side wall 26, and more specifically, the second casing 20 includes an outer casing 30 and an inner casing 32 that are butted against each other, for example, the outer casing 30 and the inner casing 32 are clamped, the inner casing 32 and the third side wall 26 are connected by snap fit, and the air inlet gap 28 is formed between the inner casing 32 and the third side wall 26 at a distance. In other embodiments, the air inlet gap may be formed between the second sidewall 24 and the third sidewall 26.

The refrigeration assembly comprises a semiconductor refrigeration piece 34, a heat dissipation piece 36 and a heat dissipation fan 38, wherein the cold end of the semiconductor refrigeration piece 34 is attached to the heat conduction part on the first side wall 22 so as to conduct cold energy generated by the semiconductor refrigeration piece 34 to the heat conduction part on the first side wall 22, and the heat dissipation piece 36 is attached to the hot end of the semiconductor refrigeration piece 34. From another perspective, the heat conducting portion of the first side wall 22 is made of a heat conducting material, and the heat conducting portion of the first side wall 22 can be attached to a corresponding portion of a human body, so that heat generated by the human body can be conducted to the semiconductor refrigeration sheet 34 through the heat conducting portion of the first side wall 22, and then conducted to the heat dissipation member 36 through the semiconductor refrigeration sheet 34 for heat dissipation, and therefore heat dissipation and cooling are performed on the human body through semiconductor refrigeration. In this embodiment, the cold end of semiconductor refrigeration piece 34 directly pastes with the heat conduction portion of first lateral wall 22 and establishes, in other embodiments, also can be further set up the heat conduction glue between the cold end of semiconductor refrigeration piece 34 and the heat conduction portion of first lateral wall 22 for the cold energy that semiconductor refrigeration piece 34 produced conducts again to the heat conduction portion of first lateral wall 22 after the heat conduction glue on, and the cold end of semiconductor refrigeration piece 34 pastes with the heat conduction portion of first lateral wall 22 indirectly promptly.

In the illustrated embodiment, the heat dissipating member 36 includes a substrate 40 and a plurality of heat dissipating fins 42 extending from the substrate 40 toward one side, the plurality of heat dissipating fins 42 are spaced apart in parallel such that a heat dissipating slot 44 is formed between two adjacent heat dissipating fins 42, the heat dissipating slot 44 extends along the length direction of the body 12, for example, and one side of the substrate 40 facing away from the heat dissipating fins 42 is attached to the hot end of the semiconductor chilling plate 34. A plurality of heat dissipation fins 42 are provided with a notch at a middle position thereof, the notch forms a mounting groove 46, and the heat dissipation fan 38 is mounted in the mounting groove 46 for blowing heat to the heat dissipation grooves 44 at both sides.

The first side wall 22 and/or the third side wall 26 are provided with air inlets 48, and the air inlets 48 are used for extracting air from the fan wheel 14. In this embodiment, the first side wall 22 and the third side wall 26 are provided with air inlets 48 to ensure sufficient air intake. Preferably, two air inlets 48 are formed in the first side wall 22 and the third side wall 26, respectively, and the two air inlets 48 in each side wall are formed corresponding to the positions of the two fan wheels 14, respectively. An air outlet 50 is disposed on a side of the second sidewall 24 close to the fan wheel 14, and air generated by the operation of the fan wheel 14 is blown out through the air outlet 50. More specifically, each impeller 14 is surrounded at its periphery by a volute 52, which 52 makes the wind generated by the impeller 14 more concentrated and stronger. And the opening of the volute 52 is arranged towards the air outlet 50, so that the wind generated by the fan wheel 14 is directly blown to the air outlet 50 through the opening of the volute 52, and the wind power is further enhanced.

Preferably, the rotation directions of the two fan wheels 14 are opposite, referring to fig. 4, when the left fan wheel 14 rotates counterclockwise and the right fan wheel 14 rotates clockwise, the wind directions generated by the two fan wheels 14 are opposite, and the wind directions can be converged together after passing through the wind outlet 50, so as to further enhance the wind power; when the left fan wheel 14 rotates clockwise and the right fan wheel 14 rotates counterclockwise, the wind generated by the two fan wheels 14 is opposite, and the two wind streams are diffused after passing through the air outlet 50, so that the air outlet range can be enlarged.

The third side wall 26 is further provided with air inlet holes 54, and the air inlet holes 54 are used for supplying air to the heat dissipation fan 38. The second sidewall 24 is provided with heat dissipation holes 56, so that the wind generated by the heat dissipation fan 38 can be blown out from the heat dissipation holes 56. Preferably, the air inlet 54 is disposed corresponding to the position of the heat dissipating fan 38, and the heat dissipating holes 56 are disposed in the extending direction of the heat dissipating slot 44, for example, the heat dissipating holes 56 are disposed on both sides of the second sidewall 24 corresponding to the extending direction of the heat dissipating slot 44, so as to improve the heat dissipating efficiency.

When the portable fan 10 is operated, external air can enter the accommodating space 16 from the air inlet 48 on the first side wall 22 and the air inlet gap 28 between the second casing 20 and the third side wall 26 through the air inlet 48 on the third side wall 26 and the air inlet holes 54 to provide air inlet for the operation of the fan wheel 14 and the heat dissipation fan 38. Alternatively, the external air can enter the receiving space 16 from the air inlet 48 on the first side wall 22 and the air inlet gap between the second side wall 24 and the third side wall 26 and the air inlet holes 54 to provide the air inlet for the operation of the fan wheel 14 and the heat dissipation fan 38.

The portable fan 10 further includes a battery 58 and a circuit board (not shown), a receiving cavity is formed in the second casing 20, and the battery 58 is disposed in the receiving cavity, so that the battery 58 is separated from the impeller 14 and the refrigeration assembly, and the battery 58 is prevented from generating heat to interfere with the normal operation of the impeller 14 and the refrigeration assembly. The circuit board may be disposed in the second housing 20 or disposed in the receiving space 16 of the first housing 18. And the battery 58, the impeller 14 and the semiconductor chilling plate 34 are electrically connected with the circuit board respectively to provide power for the circuit board.

The second sidewall 24 is provided with a hanging rope hole 60 so that the portable fan 10 can be worn on the human body through the hanging rope. In the illustrated embodiment, two opposite side surfaces of the second side wall 24 along the length direction of the body 12 are respectively provided with a hanging rope hole 60, and a hanging rope can be threaded through the hanging rope hole 60, so that the portable fan 10 can be hung on a human body, for example, can be hung on a user in a schoolbag-like manner, the air outlet 50 faces the face or the chest of the human body, and the first side wall 22 is attached to a corresponding part of the human body, for example, the waist and the abdomen, so as to achieve heat dissipation and temperature reduction.

The housing 30 is further provided with a support plate 62, for example, a pivot slot 64 is provided on the outer side of the housing 30, and one end of the support plate 62 is rotatably connected to the pivot slot through a rotating shaft. When the support sheet 62 is opened, the portable device 10 can be hung on the user, for example, on a waist belt, so that the portable device is fixed relative to the human body, and cooling and enjoying are facilitated. The support flap 62 when open may also be used to support the portable fan 10 on a table top. In other embodiments, the support tab 62 may also be disposed on the first sidewall 22.

It should be noted that, in other embodiments, the second housing 20 may not be disposed on the body 12, in this case, the battery 58 may be disposed in the accommodating space 16, the battery 58 and the fan wheel 14 are separated by a partition to prevent heat of the battery 58 from being extracted by the fan wheel 14 to blow hot air, the air inlet 48 may be disposed on the first side wall 22 and/or the third side wall 26, the air outlet 50 may be disposed on the third side wall 26 or the first side wall 22, and the supporting sheet 62 may be disposed on the third side wall 26 or the first side wall 22.

To sum up, the utility model provides a portable fan, include the body and locate this internal impeller and refrigeration subassembly, the refrigeration subassembly includes the semiconductor refrigeration piece, the body has first lateral wall, be equipped with the heat conduction portion on the first lateral wall, the heat conduction portion adopts the heat conduction material to make, the cold junction and the heat conduction portion of semiconductor refrigeration piece are pasted and are established, in order to conduct the cold energy that produces to the heat conduction portion of first lateral wall, be equipped with the air outlet on the body, the wind that the impeller operation produced blows off through the air outlet, thereby make portable fan both can blow the cooling, can utilize the semiconductor refrigeration cooling at the human body corresponding position through pasting the heat conduction portion with first lateral wall again, it is better to enjoy the cool effect. The portable fan can be obliquely hung on the side of a user by the aid of the hanging rope penetrating through the hanging rope holes and fixed by the supporting sheet, the air outlet faces to a part to be cooled of a human body, and the first side wall can be attached to the human body without being held by the hand. The utility model discloses a portable fan simple structure, convenient and practical, the cooling is effectual, and portable brings good product experience for the user.

The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed should be considered illustrative rather than limiting. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A portable fan is characterized by comprising a body, a fan wheel and a refrigerating assembly; an accommodating space is formed in the body, and the fan wheel and the refrigeration assembly are arranged in the accommodating space; the refrigeration assembly comprises a semiconductor refrigeration piece, the body is provided with a first side wall, a heat conduction part is arranged on the first side wall and made of a heat conduction material, and the cold end of the semiconductor refrigeration piece is attached to the heat conduction part so as to conduct cold energy generated by the semiconductor refrigeration piece to the heat conduction part; the body is provided with an air outlet, and air generated by the fan wheel is blown out through the air outlet.

2. The portable fan of claim 1, wherein the body further comprises a second sidewall adjacent to the first sidewall and a third sidewall opposite to the first sidewall, the second sidewall is connected between the first sidewall and the third sidewall, the air outlet is disposed on the second sidewall, and an air inlet is disposed on the first sidewall and/or the third sidewall, and the air inlet is used for the fan wheel to draw air.

3. The portable fan of claim 2, wherein the cooling assembly further comprises a heat dissipation fan and a heat dissipation member, the heat dissipation member is attached to the hot end of the semiconductor cooling plate, the heat dissipation fan is used for blowing air to the heat dissipation member for heat dissipation, the second side wall is provided with heat dissipation holes, air generated by the heat dissipation fan blows out of the heat dissipation holes, and the third side wall is provided with an air inlet hole for supplying air to the heat dissipation fan.

4. The portable fan of claim 3, wherein the heat sink comprises a substrate and a plurality of heat fins extending from the substrate toward one side, a heat sink is formed between the plurality of heat fins, one side of the substrate facing away from the heat fins is attached to the hot end of the semiconductor chilling plate, a mounting groove is formed on the plurality of heat fins, and the heat dissipation fan is mounted in the mounting groove;

5. The portable fan of claim 2, wherein the air inlet is disposed corresponding to a position of the fan wheel, a volute is disposed around a periphery of the fan wheel, and an opening of the volute faces the air outlet.

6. The portable fan of claim 5, wherein there are two of said wheels side by side and the rotation directions of said two wheels are opposite.

7. The portable fan of any one of claims 2-6, further comprising a battery and a circuit board, wherein the battery and the circuit board are disposed in the receiving space, the battery, the impeller, and the cooling assembly are electrically connected to the circuit board, respectively, and the battery and the impeller are separated by a partition.

8. The portable fan of claim 7, wherein the second sidewall has a hanging cord hole, such that the portable fan can be worn on a human body via a hanging cord; and/or

9. The portable fan according to any one of claims 2 to 6, wherein the body comprises a first case and a second case connected to each other, the first case comprises the first side wall, the second side wall and the third side wall, and the receiving space is formed in the first case; an air inlet gap is formed between the second side wall and the third side wall, or the second shell is connected with the third side wall and forms an air inlet gap with the third side wall, so that external air can enter the accommodating space from the air inlet gap through the air inlet on the third side wall.

10. The portable fan of claim 9, wherein a receiving cavity is formed in the second casing, the portable fan further comprises a battery and a circuit board, the battery is disposed in the receiving cavity, the circuit board is disposed in the receiving cavity or the receiving space, and the battery, the impeller and the cooling assembly are electrically connected to the circuit board respectively.